AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
DNA is replicated using the ____ model
A
conservative
B
dispersive
C
semiconservative
Explanation: 

Detailed explanation-1: -According to the semiconservative model, after one round of replication, every new DNA double helix would be a hybrid that consisted of one strand of old DNA bound to one strand of newly synthesized DNA.

Detailed explanation-2: -After Watson and Crick proposed the double helix model of DNA, three models for DNA replication were proposed: conservative, semiconservative and dispersive. But Meselson and Stahl proved semiconservative is actual the mode of DNA replication .

Detailed explanation-3: -Watson and Crick outlined a model for DNA replication, later called semi-conservative replication. According to Watson and Crick, in preparation for DNA replication, the two strands of DNA first unwound and separated.

There is 1 question to complete.